Increased oral anticoagulant activity.
Floxsafe Additive effect on QT interval prolongation w/ other medicinal products that may prolong the QTc interval eg, class IA (eg, quinidine, hydroquinidine, disopyramide) & III (eg, amiodarone, sotalol, dofetilide, ibutilide), anti-arrhythmics, antipsychotics (eg, phenothiazines, pimozide, sertindole, haloperidol, sultopride), TCAs, certain antimicrobial agents (eg, saquinavir, sparfloxacin, erythromycin IV, pentamidine, antimalarials particularly halofantrine), certain antihistaminics (eg, terfenadine, astemizole, mizolastine) & cisapride, vincamine IV, bepridil, diphemanil. Pronounced prevention of absorption & reduced systemic availability w/ charcoal. Increased C
max of digoxin.
Floxsafe IV May cause hypokalaemia w/ thiazide & loop diuretics, corticosteroids, ACTH, & glycyrrhizin. May cause convulsions w/ NSAIDs of phenylacetic acid or propionic derivatives (eg, roxoprofen).